html,
body {
  scroll-behavior: smooth;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 8px;
  font-size: 14px;
  line-height: 22px;
}

.title {
  font-size: 16px;
  margin-bottom: 6px;
}

.item-title {
  margin: 10px 0 16px;
  padding: 10px 6px;
}

.item-title > span:nth-child(1) {
  font-weight: 800;
  color: #000;
  background-color: orange;
}

.item-title > .item-child {
  margin-bottom: 16px;
}

.item-child {
  padding-left: 12px;
  box-sizing: border-box;
  margin: 6px 0;
}

.item-child > span:nth-child(1) {
  font-weight: 800;
  color: #000;
}
